/*
 * Copyright (C) 2018 The Sylph Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package ideal.sylph.etl.join;

import ideal.sylph.etl.Schema;

import java.util.List;
import java.util.Map;

public interface JoinContext
{
    public enum JoinType
    {
        INNER,
        FULL,
        CROSS,
        LEFT,
        RIGHT
    }

    public String getBatchTable();

    public JoinType getJoinType();

    public List<SelectField> getSelectFields();

    public Map<Integer, String> getJoinOnMapping();

    public Schema getSchema();
}
